Propagation of Optical Signals Encrypted with Spectral Phase Encoding and Signal/Polarisation Shuffling

Non-intrusive tapping and other threats have underscored the necessity for enhanced security mechanisms in transparent optical networks (TONs). In this work, we explore the application of both intra- and inter-signal cryptography techniques to secure TON signals. The intra-signal approach utilizes s...

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Bibliographic Details
Published in:	2024 24th International Conference on Transparent Optical Networks (ICTON) pp. 1 - 4
Main Authors:	Pereira, Joao Pedro de Lima Cassiano, Nogueira, Marcelo Pereira, Fagotto, Eric Alberto de Mello, Aldaya, Ivan, Abbade, Marcelo Luis Francisco
Format:	Conference Proceeding
Language:	English
Published:	IEEE 14-07-2024
Subjects:	Encoding Integrated optics Network security optical communications Optical fiber networks Optical fiber polarization Optical polarization Optical propagation Quadrature amplitude modulation signal cryptography
Online Access:	Get full text
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Summary:	Non-intrusive tapping and other threats have underscored the necessity for enhanced security mechanisms in transparent optical networks (TONs). In this work, we explore the application of both intra- and inter-signal cryptography techniques to secure TON signals. The intra-signal approach utilizes spectral phase encoding, while the inter-signal technique relies on shuffling the samples among different signals, including the X - and Y polarisation components of each signal. Computer simulation results suggest that encrypted 448 \mathrm{~Gb} / \mathrm{s} dual polarisation (DP) 16-quadrature amplitude modulation (QAM) signals may be properly recovered after \sim 700 \mathrm{~km} of standard single-mode fiber propagation.
ISSN:	2161-2064
DOI:	10.1109/ICTON62926.2024.10647852